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Old 06-01-2010, 03:40 PM
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compression test results

does this in any way determine how much compression my engine has? I got 230-250 psi across the board.

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Old 06-01-2010, 03:45 PM
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Indicates the gauge is fubared or the cr is very high and or the cam is very small and or very over advanced. or all.

For street performance on street premium unleaded gas you want the cranking compression between 150 and 200psi. 200psi is really pushing it.
(more pain than gain)
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Old 06-01-2010, 03:52 PM
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That's high. Usually I'll end up with something between 150-175 psi. And sometimes I'm over-cammed. But over-200 psi is high.
What are the specs on this engine?
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Old 06-01-2010, 03:55 PM
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it's not the gauge. I think what I've been chasing as timing/tuning is way too much compression from this motor. It came out of some circle track race car.. Now the question is what is the cheapest way to lower it??
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Old 06-01-2010, 03:57 PM
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Big chamber smog heads. They're cheap (pretty much FREE), and will drop your numbers.
That's if "cheap" is your primary concern. You'll lose performance though...
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Old 06-01-2010, 03:59 PM
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my performance can't be any worse than it is now.
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